KINE 4370 Chapter Notes - Chapter 6: Electrophysiology, Confounding, Neural Oscillation

• School: York University
• Department: Kinesiology & Health Science
• Course: KINE 4370
• Professor: Noah Wayne

Document Summary

Reading 5 - neurophysiology and meditation part 2. Long-term meditators self-induce high-amplitude gamma synchrony during mental practice. Abstract: pra(cid:272)titio(cid:374)ers u(cid:374)dersta(cid:374)d (cid:858)(cid:858)(cid:373)editatio(cid:374),(cid:859)(cid:859) or (cid:373)e(cid:374)tal trai(cid:374)i(cid:374)g, to (cid:271)e a pro(cid:272)ess of familiarization with o(cid:374)e(cid:859)s own mental life leading to long-lasting changes in cognition and emotion. Little is known about this process and its impact on the brain. Here we find that long- term buddhist practitioners self-induce sustained electroencephalographic high-amplitude gamma-band oscillations and phase-synchrony during meditation. These electroencephalogram patterns differ from those of controls, in particular over lateral frontoparietal electrodes. In addition, the ratio of gamma-band activity (25 42 hz) to slow oscillatory activity (4 13 hz) is initially higher in the resting baseline before meditation for the practitioners than the controls over medial frontoparietal electrodes. This difference increases sharply during meditation over most of the scalp electrodes and remains higher than the initial baseline in the postmeditation baseline.